Draws must follow panel's arrangement for how they can be settled (9)
I believe the answer is:
penalties
'how they can be settled' is the definition.
The definition suggests an adverb but the answer is not.
'draws must follow panel's arrangement' is the wordplay.
'draws' becomes 'ties' ('tie' can be a synonym of 'draw').
'must follow' is a charade indicator (letters next to each other).
'arrangement' indicates an anagram.
'panel' anagrammed gives 'penal'.
'ties' put after 'penal' is 'PENALTIES'.
'for' is the link.
Can you help me to learn more?
(Other definitions for penalties that I've seen before include "Fines or forfeitures in Palestine" , "Punitive impositions in Palestine" , "parking fines" .)